3D FABRIC AND PREPARATION METHOD THEREFOR

WIPO Patent Application WO/2022/121375

A1

A three-dimensional (3D) fabric and a preparation method therefor. The 3D fabric is a woven fabric which is formed by interweaving warp yarns and weft yarns and has a non-planar surface; the warp density and weft density on each part of the woven fabric are the same; all warp yarns on the woven fabric are parallel to the plane where any curved warp yarn is located; and all weft yarns on the woven fabric are parallel to the plane where any curved weft yarn is located. The preparation method comprises: first determining, according to a 3D structure of the 3D fabric, weaving parameters: the warp let-off amount of a j-th warp during i-th beating-up and a heddle eye height of a heddle corresponding to the j-th warp during the i-th beating-up, and then placing a corresponding grid-like support in an area from a corresponding cloth fell to a first row of heddles during 3D fabric weaving for weaving to prepare the 3D fabric. The method is widely applicable, a fabric having a curved surface can be directly woven, and the prepared 3D fabric has the advantages of being formed at a time, and having an uninterrupted structure, controllable density, and a complex curved surface.

WANG JIANG (CN)
WANG SHANSHUI (CN)
TANG FANGMING (CN)
WANG LILI (CN)
YU XIUFENG (CN)
ZHANG YUANHUA (CN)

PCT/CN2021/114186

June 16, 2022

August 24, 2021

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JIANGSU HENGLI CHEMICAL FIBRE CO LTD (CN)

D03C9/02; D03D25/00; D03D13/00; D03D49/06; D03D51/00

CN209555469U	2019-10-29
CN112680863A	2021-04-20
CN108823742A	2018-11-16
CN106400276A	2017-02-15
CN104278418A	2015-01-14
TWI583839B	2017-05-21
US20130304023A1	2013-11-14

TONGSHE INTELLECTUAL PROPERTY AGENCY (CN)

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